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<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno">    1</span>&#160;<span class="preprocessor">#ifndef BIGINTEGER_H</span></div><div class="line"><a name="l00002"></a><span class="lineno">    2</span>&#160;<span class="preprocessor">#define BIGINTEGER_H</span></div><div class="line"><a name="l00003"></a><span class="lineno">    3</span>&#160;</div><div class="line"><a name="l00004"></a><span class="lineno">    4</span>&#160;<span class="preprocessor">#include &quot;BigUnsigned.hh&quot;</span></div><div class="line"><a name="l00005"></a><span class="lineno">    5</span>&#160;</div><div class="line"><a name="l00006"></a><span class="lineno">    6</span>&#160;<span class="comment">/* A BigInteger object represents a signed integer of size limited only by</span></div><div class="line"><a name="l00007"></a><span class="lineno">    7</span>&#160;<span class="comment"> * available memory.  BigUnsigneds support most mathematical operators and can</span></div><div class="line"><a name="l00008"></a><span class="lineno">    8</span>&#160;<span class="comment"> * be converted to and from most primitive integer types.</span></div><div class="line"><a name="l00009"></a><span class="lineno">    9</span>&#160;<span class="comment"> *</span></div><div class="line"><a name="l00010"></a><span class="lineno">   10</span>&#160;<span class="comment"> * A BigInteger is just an aggregate of a BigUnsigned and a sign.  (It is no</span></div><div class="line"><a name="l00011"></a><span class="lineno">   11</span>&#160;<span class="comment"> * longer derived from BigUnsigned because that led to harmful implicit</span></div><div class="line"><a name="l00012"></a><span class="lineno">   12</span>&#160;<span class="comment"> * conversions.) */</span></div><div class="line"><a name="l00013"></a><span class="lineno"><a class="line" href="class_big_integer.html">   13</a></span>&#160;<span class="keyword">class </span><a class="code" href="class_big_integer.html">BigInteger</a> {</div><div class="line"><a name="l00014"></a><span class="lineno">   14</span>&#160;</div><div class="line"><a name="l00015"></a><span class="lineno">   15</span>&#160;<span class="keyword">public</span>:</div><div class="line"><a name="l00016"></a><span class="lineno">   16</span>&#160;    <span class="keyword">typedef</span> BigUnsigned::Blk Blk;</div><div class="line"><a name="l00017"></a><span class="lineno">   17</span>&#160;    <span class="keyword">typedef</span> BigUnsigned::Index Index;</div><div class="line"><a name="l00018"></a><span class="lineno">   18</span>&#160;    <span class="keyword">typedef</span> BigUnsigned::CmpRes CmpRes;</div><div class="line"><a name="l00019"></a><span class="lineno">   19</span>&#160;    <span class="keyword">static</span> <span class="keyword">const</span> CmpRes</div><div class="line"><a name="l00020"></a><span class="lineno">   20</span>&#160;        less    = BigUnsigned::less   ,</div><div class="line"><a name="l00021"></a><span class="lineno">   21</span>&#160;        equal   = BigUnsigned::equal  ,</div><div class="line"><a name="l00022"></a><span class="lineno">   22</span>&#160;        greater = BigUnsigned::greater;</div><div class="line"><a name="l00023"></a><span class="lineno">   23</span>&#160;    <span class="comment">// Enumeration for the sign of a BigInteger.</span></div><div class="line"><a name="l00024"></a><span class="lineno">   24</span>&#160;    <span class="keyword">enum</span> Sign { negative = -1, zero = 0, positive = 1 };</div><div class="line"><a name="l00025"></a><span class="lineno">   25</span>&#160;</div><div class="line"><a name="l00026"></a><span class="lineno">   26</span>&#160;<span class="keyword">protected</span>:</div><div class="line"><a name="l00027"></a><span class="lineno">   27</span>&#160;    Sign sign;</div><div class="line"><a name="l00028"></a><span class="lineno">   28</span>&#160;    <a class="code" href="class_big_unsigned.html">BigUnsigned</a> mag;</div><div class="line"><a name="l00029"></a><span class="lineno">   29</span>&#160;</div><div class="line"><a name="l00030"></a><span class="lineno">   30</span>&#160;<span class="keyword">public</span>:</div><div class="line"><a name="l00031"></a><span class="lineno">   31</span>&#160;    <span class="comment">// Constructs zero.</span></div><div class="line"><a name="l00032"></a><span class="lineno">   32</span>&#160;    <a class="code" href="class_big_integer.html">BigInteger</a>() : sign(zero), mag() {}</div><div class="line"><a name="l00033"></a><span class="lineno">   33</span>&#160;</div><div class="line"><a name="l00034"></a><span class="lineno">   34</span>&#160;    <span class="comment">// Copy constructor</span></div><div class="line"><a name="l00035"></a><span class="lineno">   35</span>&#160;    <a class="code" href="class_big_integer.html">BigInteger</a>(<span class="keyword">const</span> <a class="code" href="class_big_integer.html">BigInteger</a> &amp;x) : sign(x.sign), mag(x.mag) {};</div><div class="line"><a name="l00036"></a><span class="lineno">   36</span>&#160;</div><div class="line"><a name="l00037"></a><span class="lineno">   37</span>&#160;    <span class="comment">// Assignment operator</span></div><div class="line"><a name="l00038"></a><span class="lineno">   38</span>&#160;    <span class="keywordtype">void</span> operator=(<span class="keyword">const</span> <a class="code" href="class_big_integer.html">BigInteger</a> &amp;x);</div><div class="line"><a name="l00039"></a><span class="lineno">   39</span>&#160;</div><div class="line"><a name="l00040"></a><span class="lineno">   40</span>&#160;    <span class="comment">// Constructor that copies from a given array of blocks with a sign.</span></div><div class="line"><a name="l00041"></a><span class="lineno">   41</span>&#160;    <a class="code" href="class_big_integer.html">BigInteger</a>(<span class="keyword">const</span> Blk *b, Index blen, Sign s);</div><div class="line"><a name="l00042"></a><span class="lineno">   42</span>&#160;</div><div class="line"><a name="l00043"></a><span class="lineno">   43</span>&#160;    <span class="comment">// Nonnegative constructor that copies from a given array of blocks.</span></div><div class="line"><a name="l00044"></a><span class="lineno">   44</span>&#160;    <a class="code" href="class_big_integer.html">BigInteger</a>(<span class="keyword">const</span> Blk *b, Index blen) : mag(b, blen) {</div><div class="line"><a name="l00045"></a><span class="lineno">   45</span>&#160;        sign = mag.isZero() ? zero : positive;</div><div class="line"><a name="l00046"></a><span class="lineno">   46</span>&#160;    }</div><div class="line"><a name="l00047"></a><span class="lineno">   47</span>&#160;</div><div class="line"><a name="l00048"></a><span class="lineno">   48</span>&#160;    <span class="comment">// Constructor from a BigUnsigned and a sign</span></div><div class="line"><a name="l00049"></a><span class="lineno">   49</span>&#160;    <a class="code" href="class_big_integer.html">BigInteger</a>(<span class="keyword">const</span> <a class="code" href="class_big_unsigned.html">BigUnsigned</a> &amp;x, Sign s);</div><div class="line"><a name="l00050"></a><span class="lineno">   50</span>&#160;</div><div class="line"><a name="l00051"></a><span class="lineno">   51</span>&#160;    <span class="comment">// Nonnegative constructor from a BigUnsigned</span></div><div class="line"><a name="l00052"></a><span class="lineno">   52</span>&#160;    <a class="code" href="class_big_integer.html">BigInteger</a>(<span class="keyword">const</span> <a class="code" href="class_big_unsigned.html">BigUnsigned</a> &amp;x) : mag(x) {</div><div class="line"><a name="l00053"></a><span class="lineno">   53</span>&#160;        sign = mag.isZero() ? zero : positive;</div><div class="line"><a name="l00054"></a><span class="lineno">   54</span>&#160;    }</div><div class="line"><a name="l00055"></a><span class="lineno">   55</span>&#160;</div><div class="line"><a name="l00056"></a><span class="lineno">   56</span>&#160;    <span class="comment">// Constructors from primitive integer types</span></div><div class="line"><a name="l00057"></a><span class="lineno">   57</span>&#160;    <a class="code" href="class_big_integer.html">BigInteger</a>(<span class="keywordtype">unsigned</span> <span class="keywordtype">long</span>  x);</div><div class="line"><a name="l00058"></a><span class="lineno">   58</span>&#160;    <a class="code" href="class_big_integer.html">BigInteger</a>(         <span class="keywordtype">long</span>  x);</div><div class="line"><a name="l00059"></a><span class="lineno">   59</span>&#160;    <a class="code" href="class_big_integer.html">BigInteger</a>(<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span>   x);</div><div class="line"><a name="l00060"></a><span class="lineno">   60</span>&#160;    <a class="code" href="class_big_integer.html">BigInteger</a>(         <span class="keywordtype">int</span>   x);</div><div class="line"><a name="l00061"></a><span class="lineno">   61</span>&#160;    <a class="code" href="class_big_integer.html">BigInteger</a>(<span class="keywordtype">unsigned</span> <span class="keywordtype">short</span> x);</div><div class="line"><a name="l00062"></a><span class="lineno">   62</span>&#160;    <a class="code" href="class_big_integer.html">BigInteger</a>(         <span class="keywordtype">short</span> x);</div><div class="line"><a name="l00063"></a><span class="lineno">   63</span>&#160;</div><div class="line"><a name="l00064"></a><span class="lineno">   64</span>&#160;    <span class="comment">/* Converters to primitive integer types</span></div><div class="line"><a name="l00065"></a><span class="lineno">   65</span>&#160;<span class="comment">     * The implicit conversion operators caused trouble, so these are now</span></div><div class="line"><a name="l00066"></a><span class="lineno">   66</span>&#160;<span class="comment">     * named. */</span></div><div class="line"><a name="l00067"></a><span class="lineno">   67</span>&#160;    <span class="keywordtype">unsigned</span> <span class="keywordtype">long</span>  toUnsignedLong () <span class="keyword">const</span>;</div><div class="line"><a name="l00068"></a><span class="lineno">   68</span>&#160;    <span class="keywordtype">long</span>           toLong         () <span class="keyword">const</span>;</div><div class="line"><a name="l00069"></a><span class="lineno">   69</span>&#160;    <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span>   toUnsignedInt  () <span class="keyword">const</span>;</div><div class="line"><a name="l00070"></a><span class="lineno">   70</span>&#160;    <span class="keywordtype">int</span>            toInt          () <span class="keyword">const</span>;</div><div class="line"><a name="l00071"></a><span class="lineno">   71</span>&#160;    <span class="keywordtype">unsigned</span> <span class="keywordtype">short</span> toUnsignedShort() <span class="keyword">const</span>;</div><div class="line"><a name="l00072"></a><span class="lineno">   72</span>&#160;    <span class="keywordtype">short</span>          toShort        () <span class="keyword">const</span>;</div><div class="line"><a name="l00073"></a><span class="lineno">   73</span>&#160;<span class="keyword">protected</span>:</div><div class="line"><a name="l00074"></a><span class="lineno">   74</span>&#160;    <span class="comment">// Helper</span></div><div class="line"><a name="l00075"></a><span class="lineno">   75</span>&#160;    <span class="keyword">template</span> &lt;<span class="keyword">class</span> X&gt; X convertToUnsignedPrimitive() <span class="keyword">const</span>;</div><div class="line"><a name="l00076"></a><span class="lineno">   76</span>&#160;    <span class="keyword">template</span> &lt;<span class="keyword">class</span> X, <span class="keyword">class</span> UX&gt; X convertToSignedPrimitive() <span class="keyword">const</span>;</div><div class="line"><a name="l00077"></a><span class="lineno">   77</span>&#160;<span class="keyword">public</span>:</div><div class="line"><a name="l00078"></a><span class="lineno">   78</span>&#160;</div><div class="line"><a name="l00079"></a><span class="lineno">   79</span>&#160;    <span class="comment">// ACCESSORS</span></div><div class="line"><a name="l00080"></a><span class="lineno">   80</span>&#160;    Sign getSign()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> sign; }</div><div class="line"><a name="l00081"></a><span class="lineno">   81</span>&#160;    <span class="comment">/* The client can&#39;t do any harm by holding a read-only reference to the</span></div><div class="line"><a name="l00082"></a><span class="lineno">   82</span>&#160;<span class="comment">     * magnitude. */</span></div><div class="line"><a name="l00083"></a><span class="lineno">   83</span>&#160;    <span class="keyword">const</span> <a class="code" href="class_big_unsigned.html">BigUnsigned</a> &amp;getMagnitude()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> mag; }</div><div class="line"><a name="l00084"></a><span class="lineno">   84</span>&#160;</div><div class="line"><a name="l00085"></a><span class="lineno">   85</span>&#160;    <span class="comment">// Some accessors that go through to the magnitude</span></div><div class="line"><a name="l00086"></a><span class="lineno">   86</span>&#160;    Index getLength()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> mag.getLength(); }</div><div class="line"><a name="l00087"></a><span class="lineno">   87</span>&#160;    Index getCapacity()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> mag.getCapacity(); }</div><div class="line"><a name="l00088"></a><span class="lineno">   88</span>&#160;    Blk getBlock(Index i)<span class="keyword"> const </span>{ <span class="keywordflow">return</span> mag.getBlock(i); }</div><div class="line"><a name="l00089"></a><span class="lineno">   89</span>&#160;    <span class="keywordtype">bool</span> isZero()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> sign == zero; } <span class="comment">// A bit special</span></div><div class="line"><a name="l00090"></a><span class="lineno">   90</span>&#160;</div><div class="line"><a name="l00091"></a><span class="lineno">   91</span>&#160;    <span class="comment">// COMPARISONS</span></div><div class="line"><a name="l00092"></a><span class="lineno">   92</span>&#160;</div><div class="line"><a name="l00093"></a><span class="lineno">   93</span>&#160;    <span class="comment">// Compares this to x like Perl&#39;s &lt;=&gt;</span></div><div class="line"><a name="l00094"></a><span class="lineno">   94</span>&#160;    CmpRes compareTo(<span class="keyword">const</span> <a class="code" href="class_big_integer.html">BigInteger</a> &amp;x) <span class="keyword">const</span>;</div><div class="line"><a name="l00095"></a><span class="lineno">   95</span>&#160;</div><div class="line"><a name="l00096"></a><span class="lineno">   96</span>&#160;    <span class="comment">// Ordinary comparison operators</span></div><div class="line"><a name="l00097"></a><span class="lineno">   97</span>&#160;    <span class="keywordtype">bool</span> operator ==(<span class="keyword">const</span> <a class="code" href="class_big_integer.html">BigInteger</a> &amp;x)<span class="keyword"> const </span>{</div><div class="line"><a name="l00098"></a><span class="lineno">   98</span>&#160;        <span class="keywordflow">return</span> sign == x.sign &amp;&amp; mag == x.mag;</div><div class="line"><a name="l00099"></a><span class="lineno">   99</span>&#160;    }</div><div class="line"><a name="l00100"></a><span class="lineno">  100</span>&#160;    <span class="keywordtype">bool</span> operator !=(<span class="keyword">const</span> <a class="code" href="class_big_integer.html">BigInteger</a> &amp;x)<span class="keyword"> const </span>{ <span class="keywordflow">return</span> !operator ==(x); };</div><div class="line"><a name="l00101"></a><span class="lineno">  101</span>&#160;    <span class="keywordtype">bool</span> operator &lt; (<span class="keyword">const</span> <a class="code" href="class_big_integer.html">BigInteger</a> &amp;x)<span class="keyword"> const </span>{ <span class="keywordflow">return</span> compareTo(x) == less   ; }</div><div class="line"><a name="l00102"></a><span class="lineno">  102</span>&#160;    <span class="keywordtype">bool</span> operator &lt;=(<span class="keyword">const</span> <a class="code" href="class_big_integer.html">BigInteger</a> &amp;x)<span class="keyword"> const </span>{ <span class="keywordflow">return</span> compareTo(x) != greater; }</div><div class="line"><a name="l00103"></a><span class="lineno">  103</span>&#160;    <span class="keywordtype">bool</span> operator &gt;=(<span class="keyword">const</span> <a class="code" href="class_big_integer.html">BigInteger</a> &amp;x)<span class="keyword"> const </span>{ <span class="keywordflow">return</span> compareTo(x) != less   ; }</div><div class="line"><a name="l00104"></a><span class="lineno">  104</span>&#160;    <span class="keywordtype">bool</span> operator &gt; (<span class="keyword">const</span> <a class="code" href="class_big_integer.html">BigInteger</a> &amp;x)<span class="keyword"> const </span>{ <span class="keywordflow">return</span> compareTo(x) == greater; }</div><div class="line"><a name="l00105"></a><span class="lineno">  105</span>&#160;</div><div class="line"><a name="l00106"></a><span class="lineno">  106</span>&#160;    <span class="comment">// OPERATORS -- See the discussion in BigUnsigned.hh.</span></div><div class="line"><a name="l00107"></a><span class="lineno">  107</span>&#160;    <span class="keywordtype">void</span> add     (<span class="keyword">const</span> <a class="code" href="class_big_integer.html">BigInteger</a> &amp;a, <span class="keyword">const</span> <a class="code" href="class_big_integer.html">BigInteger</a> &amp;b);</div><div class="line"><a name="l00108"></a><span class="lineno">  108</span>&#160;    <span class="keywordtype">void</span> subtract(<span class="keyword">const</span> <a class="code" href="class_big_integer.html">BigInteger</a> &amp;a, <span class="keyword">const</span> <a class="code" href="class_big_integer.html">BigInteger</a> &amp;b);</div><div class="line"><a name="l00109"></a><span class="lineno">  109</span>&#160;    <span class="keywordtype">void</span> multiply(<span class="keyword">const</span> <a class="code" href="class_big_integer.html">BigInteger</a> &amp;a, <span class="keyword">const</span> <a class="code" href="class_big_integer.html">BigInteger</a> &amp;b);</div><div class="line"><a name="l00110"></a><span class="lineno">  110</span>&#160;    <span class="comment">/* See the comment on BigUnsigned::divideWithRemainder.  Semantics</span></div><div class="line"><a name="l00111"></a><span class="lineno">  111</span>&#160;<span class="comment">     * differ from those of primitive integers when negatives and/or zeros</span></div><div class="line"><a name="l00112"></a><span class="lineno">  112</span>&#160;<span class="comment">     * are involved. */</span></div><div class="line"><a name="l00113"></a><span class="lineno">  113</span>&#160;    <span class="keywordtype">void</span> divideWithRemainder(<span class="keyword">const</span> <a class="code" href="class_big_integer.html">BigInteger</a> &amp;b, <a class="code" href="class_big_integer.html">BigInteger</a> &amp;q);</div><div class="line"><a name="l00114"></a><span class="lineno">  114</span>&#160;    <span class="keywordtype">void</span> negate(<span class="keyword">const</span> <a class="code" href="class_big_integer.html">BigInteger</a> &amp;a);</div><div class="line"><a name="l00115"></a><span class="lineno">  115</span>&#160;    </div><div class="line"><a name="l00116"></a><span class="lineno">  116</span>&#160;    <span class="comment">/* Bitwise operators are not provided for BigIntegers.  Use</span></div><div class="line"><a name="l00117"></a><span class="lineno">  117</span>&#160;<span class="comment">     * getMagnitude to get the magnitude and operate on that instead. */</span></div><div class="line"><a name="l00118"></a><span class="lineno">  118</span>&#160;</div><div class="line"><a name="l00119"></a><span class="lineno">  119</span>&#160;    <a class="code" href="class_big_integer.html">BigInteger</a> operator +(<span class="keyword">const</span> <a class="code" href="class_big_integer.html">BigInteger</a> &amp;x) <span class="keyword">const</span>;</div><div class="line"><a name="l00120"></a><span class="lineno">  120</span>&#160;    <a class="code" href="class_big_integer.html">BigInteger</a> operator -(<span class="keyword">const</span> <a class="code" href="class_big_integer.html">BigInteger</a> &amp;x) <span class="keyword">const</span>;</div><div class="line"><a name="l00121"></a><span class="lineno">  121</span>&#160;    <a class="code" href="class_big_integer.html">BigInteger</a> operator *(<span class="keyword">const</span> <a class="code" href="class_big_integer.html">BigInteger</a> &amp;x) <span class="keyword">const</span>;</div><div class="line"><a name="l00122"></a><span class="lineno">  122</span>&#160;    <a class="code" href="class_big_integer.html">BigInteger</a> operator /(<span class="keyword">const</span> <a class="code" href="class_big_integer.html">BigInteger</a> &amp;x) <span class="keyword">const</span>;</div><div class="line"><a name="l00123"></a><span class="lineno">  123</span>&#160;    <a class="code" href="class_big_integer.html">BigInteger</a> operator %(<span class="keyword">const</span> <a class="code" href="class_big_integer.html">BigInteger</a> &amp;x) <span class="keyword">const</span>;</div><div class="line"><a name="l00124"></a><span class="lineno">  124</span>&#160;    <a class="code" href="class_big_integer.html">BigInteger</a> operator -() <span class="keyword">const</span>;</div><div class="line"><a name="l00125"></a><span class="lineno">  125</span>&#160;</div><div class="line"><a name="l00126"></a><span class="lineno">  126</span>&#160;    <span class="keywordtype">void</span> operator +=(<span class="keyword">const</span> <a class="code" href="class_big_integer.html">BigInteger</a> &amp;x);</div><div class="line"><a name="l00127"></a><span class="lineno">  127</span>&#160;    <span class="keywordtype">void</span> operator -=(<span class="keyword">const</span> <a class="code" href="class_big_integer.html">BigInteger</a> &amp;x);</div><div class="line"><a name="l00128"></a><span class="lineno">  128</span>&#160;    <span class="keywordtype">void</span> operator *=(<span class="keyword">const</span> <a class="code" href="class_big_integer.html">BigInteger</a> &amp;x);</div><div class="line"><a name="l00129"></a><span class="lineno">  129</span>&#160;    <span class="keywordtype">void</span> operator /=(<span class="keyword">const</span> <a class="code" href="class_big_integer.html">BigInteger</a> &amp;x);</div><div class="line"><a name="l00130"></a><span class="lineno">  130</span>&#160;    <span class="keywordtype">void</span> operator %=(<span class="keyword">const</span> <a class="code" href="class_big_integer.html">BigInteger</a> &amp;x);</div><div class="line"><a name="l00131"></a><span class="lineno">  131</span>&#160;    <span class="keywordtype">void</span> flipSign();</div><div class="line"><a name="l00132"></a><span class="lineno">  132</span>&#160;</div><div class="line"><a name="l00133"></a><span class="lineno">  133</span>&#160;    <span class="comment">// INCREMENT/DECREMENT OPERATORS</span></div><div class="line"><a name="l00134"></a><span class="lineno">  134</span>&#160;    <span class="keywordtype">void</span> operator ++(   );</div><div class="line"><a name="l00135"></a><span class="lineno">  135</span>&#160;    <span class="keywordtype">void</span> operator ++(<span class="keywordtype">int</span>);</div><div class="line"><a name="l00136"></a><span class="lineno">  136</span>&#160;    <span class="keywordtype">void</span> operator --(   );</div><div class="line"><a name="l00137"></a><span class="lineno">  137</span>&#160;    <span class="keywordtype">void</span> operator --(<span class="keywordtype">int</span>);</div><div class="line"><a name="l00138"></a><span class="lineno">  138</span>&#160;};</div><div class="line"><a name="l00139"></a><span class="lineno">  139</span>&#160;</div><div class="line"><a name="l00140"></a><span class="lineno">  140</span>&#160;<span class="comment">// NORMAL OPERATORS</span></div><div class="line"><a name="l00141"></a><span class="lineno">  141</span>&#160;<span class="comment">/* These create an object to hold the result and invoke</span></div><div class="line"><a name="l00142"></a><span class="lineno">  142</span>&#160;<span class="comment"> * the appropriate put-here operation on it, passing</span></div><div class="line"><a name="l00143"></a><span class="lineno">  143</span>&#160;<span class="comment"> * this and x.  The new object is then returned. */</span></div><div class="line"><a name="l00144"></a><span class="lineno">  144</span>&#160;<span class="keyword">inline</span> <a class="code" href="class_big_integer.html">BigInteger</a> BigInteger::operator +(<span class="keyword">const</span> <a class="code" href="class_big_integer.html">BigInteger</a> &amp;x)<span class="keyword"> const </span>{</div><div class="line"><a name="l00145"></a><span class="lineno">  145</span>&#160;    <a class="code" href="class_big_integer.html">BigInteger</a> ans;</div><div class="line"><a name="l00146"></a><span class="lineno">  146</span>&#160;    ans.add(*<span class="keyword">this</span>, x);</div><div class="line"><a name="l00147"></a><span class="lineno">  147</span>&#160;    <span class="keywordflow">return</span> ans;</div><div class="line"><a name="l00148"></a><span class="lineno">  148</span>&#160;}</div><div class="line"><a name="l00149"></a><span class="lineno">  149</span>&#160;<span class="keyword">inline</span> <a class="code" href="class_big_integer.html">BigInteger</a> BigInteger::operator -(<span class="keyword">const</span> <a class="code" href="class_big_integer.html">BigInteger</a> &amp;x)<span class="keyword"> const </span>{</div><div class="line"><a name="l00150"></a><span class="lineno">  150</span>&#160;    <a class="code" href="class_big_integer.html">BigInteger</a> ans;</div><div class="line"><a name="l00151"></a><span class="lineno">  151</span>&#160;    ans.subtract(*<span class="keyword">this</span>, x);</div><div class="line"><a name="l00152"></a><span class="lineno">  152</span>&#160;    <span class="keywordflow">return</span> ans;</div><div class="line"><a name="l00153"></a><span class="lineno">  153</span>&#160;}</div><div class="line"><a name="l00154"></a><span class="lineno">  154</span>&#160;<span class="keyword">inline</span> <a class="code" href="class_big_integer.html">BigInteger</a> BigInteger::operator *(<span class="keyword">const</span> <a class="code" href="class_big_integer.html">BigInteger</a> &amp;x)<span class="keyword"> const </span>{</div><div class="line"><a name="l00155"></a><span class="lineno">  155</span>&#160;    <a class="code" href="class_big_integer.html">BigInteger</a> ans;</div><div class="line"><a name="l00156"></a><span class="lineno">  156</span>&#160;    ans.multiply(*<span class="keyword">this</span>, x);</div><div class="line"><a name="l00157"></a><span class="lineno">  157</span>&#160;    <span class="keywordflow">return</span> ans;</div><div class="line"><a name="l00158"></a><span class="lineno">  158</span>&#160;}</div><div class="line"><a name="l00159"></a><span class="lineno">  159</span>&#160;<span class="keyword">inline</span> <a class="code" href="class_big_integer.html">BigInteger</a> BigInteger::operator /(<span class="keyword">const</span> <a class="code" href="class_big_integer.html">BigInteger</a> &amp;x)<span class="keyword"> const </span>{</div><div class="line"><a name="l00160"></a><span class="lineno">  160</span>&#160;    <span class="keywordflow">if</span> (x.isZero()) <span class="keywordflow">throw</span> <span class="stringliteral">&quot;BigInteger::operator /: division by zero&quot;</span>;</div><div class="line"><a name="l00161"></a><span class="lineno">  161</span>&#160;    <a class="code" href="class_big_integer.html">BigInteger</a> q, r;</div><div class="line"><a name="l00162"></a><span class="lineno">  162</span>&#160;    r = *<span class="keyword">this</span>;</div><div class="line"><a name="l00163"></a><span class="lineno">  163</span>&#160;    r.divideWithRemainder(x, q);</div><div class="line"><a name="l00164"></a><span class="lineno">  164</span>&#160;    <span class="keywordflow">return</span> q;</div><div class="line"><a name="l00165"></a><span class="lineno">  165</span>&#160;}</div><div class="line"><a name="l00166"></a><span class="lineno">  166</span>&#160;<span class="keyword">inline</span> <a class="code" href="class_big_integer.html">BigInteger</a> BigInteger::operator %(<span class="keyword">const</span> <a class="code" href="class_big_integer.html">BigInteger</a> &amp;x)<span class="keyword"> const </span>{</div><div class="line"><a name="l00167"></a><span class="lineno">  167</span>&#160;    <span class="keywordflow">if</span> (x.isZero()) <span class="keywordflow">throw</span> <span class="stringliteral">&quot;BigInteger::operator %: division by zero&quot;</span>;</div><div class="line"><a name="l00168"></a><span class="lineno">  168</span>&#160;    <a class="code" href="class_big_integer.html">BigInteger</a> q, r;</div><div class="line"><a name="l00169"></a><span class="lineno">  169</span>&#160;    r = *<span class="keyword">this</span>;</div><div class="line"><a name="l00170"></a><span class="lineno">  170</span>&#160;    r.divideWithRemainder(x, q);</div><div class="line"><a name="l00171"></a><span class="lineno">  171</span>&#160;    <span class="keywordflow">return</span> r;</div><div class="line"><a name="l00172"></a><span class="lineno">  172</span>&#160;}</div><div class="line"><a name="l00173"></a><span class="lineno">  173</span>&#160;<span class="keyword">inline</span> <a class="code" href="class_big_integer.html">BigInteger</a> BigInteger::operator -()<span class="keyword"> const </span>{</div><div class="line"><a name="l00174"></a><span class="lineno">  174</span>&#160;    <a class="code" href="class_big_integer.html">BigInteger</a> ans;</div><div class="line"><a name="l00175"></a><span class="lineno">  175</span>&#160;    ans.negate(*<span class="keyword">this</span>);</div><div class="line"><a name="l00176"></a><span class="lineno">  176</span>&#160;    <span class="keywordflow">return</span> ans;</div><div class="line"><a name="l00177"></a><span class="lineno">  177</span>&#160;}</div><div class="line"><a name="l00178"></a><span class="lineno">  178</span>&#160;</div><div class="line"><a name="l00179"></a><span class="lineno">  179</span>&#160;<span class="comment">/*</span></div><div class="line"><a name="l00180"></a><span class="lineno">  180</span>&#160;<span class="comment"> * ASSIGNMENT OPERATORS</span></div><div class="line"><a name="l00181"></a><span class="lineno">  181</span>&#160;<span class="comment"> * </span></div><div class="line"><a name="l00182"></a><span class="lineno">  182</span>&#160;<span class="comment"> * Now the responsibility for making a temporary copy if necessary</span></div><div class="line"><a name="l00183"></a><span class="lineno">  183</span>&#160;<span class="comment"> * belongs to the put-here operations.  See Assignment Operators in</span></div><div class="line"><a name="l00184"></a><span class="lineno">  184</span>&#160;<span class="comment"> * BigUnsigned.hh.</span></div><div class="line"><a name="l00185"></a><span class="lineno">  185</span>&#160;<span class="comment"> */</span></div><div class="line"><a name="l00186"></a><span class="lineno">  186</span>&#160;<span class="keyword">inline</span> <span class="keywordtype">void</span> BigInteger::operator +=(<span class="keyword">const</span> <a class="code" href="class_big_integer.html">BigInteger</a> &amp;x) {</div><div class="line"><a name="l00187"></a><span class="lineno">  187</span>&#160;    add(*<span class="keyword">this</span>, x);</div><div class="line"><a name="l00188"></a><span class="lineno">  188</span>&#160;}</div><div class="line"><a name="l00189"></a><span class="lineno">  189</span>&#160;<span class="keyword">inline</span> <span class="keywordtype">void</span> BigInteger::operator -=(<span class="keyword">const</span> <a class="code" href="class_big_integer.html">BigInteger</a> &amp;x) {</div><div class="line"><a name="l00190"></a><span class="lineno">  190</span>&#160;    subtract(*<span class="keyword">this</span>, x);</div><div class="line"><a name="l00191"></a><span class="lineno">  191</span>&#160;}</div><div class="line"><a name="l00192"></a><span class="lineno">  192</span>&#160;<span class="keyword">inline</span> <span class="keywordtype">void</span> BigInteger::operator *=(<span class="keyword">const</span> <a class="code" href="class_big_integer.html">BigInteger</a> &amp;x) {</div><div class="line"><a name="l00193"></a><span class="lineno">  193</span>&#160;    multiply(*<span class="keyword">this</span>, x);</div><div class="line"><a name="l00194"></a><span class="lineno">  194</span>&#160;}</div><div class="line"><a name="l00195"></a><span class="lineno">  195</span>&#160;<span class="keyword">inline</span> <span class="keywordtype">void</span> BigInteger::operator /=(<span class="keyword">const</span> <a class="code" href="class_big_integer.html">BigInteger</a> &amp;x) {</div><div class="line"><a name="l00196"></a><span class="lineno">  196</span>&#160;    <span class="keywordflow">if</span> (x.isZero()) <span class="keywordflow">throw</span> <span class="stringliteral">&quot;BigInteger::operator /=: division by zero&quot;</span>;</div><div class="line"><a name="l00197"></a><span class="lineno">  197</span>&#160;    <span class="comment">/* The following technique is slightly faster than copying *this first</span></div><div class="line"><a name="l00198"></a><span class="lineno">  198</span>&#160;<span class="comment">     * when x is large. */</span></div><div class="line"><a name="l00199"></a><span class="lineno">  199</span>&#160;    <a class="code" href="class_big_integer.html">BigInteger</a> q;</div><div class="line"><a name="l00200"></a><span class="lineno">  200</span>&#160;    divideWithRemainder(x, q);</div><div class="line"><a name="l00201"></a><span class="lineno">  201</span>&#160;    <span class="comment">// *this contains the remainder, but we overwrite it with the quotient.</span></div><div class="line"><a name="l00202"></a><span class="lineno">  202</span>&#160;    *<span class="keyword">this</span> = q;</div><div class="line"><a name="l00203"></a><span class="lineno">  203</span>&#160;}</div><div class="line"><a name="l00204"></a><span class="lineno">  204</span>&#160;<span class="keyword">inline</span> <span class="keywordtype">void</span> BigInteger::operator %=(<span class="keyword">const</span> <a class="code" href="class_big_integer.html">BigInteger</a> &amp;x) {</div><div class="line"><a name="l00205"></a><span class="lineno">  205</span>&#160;    <span class="keywordflow">if</span> (x.isZero()) <span class="keywordflow">throw</span> <span class="stringliteral">&quot;BigInteger::operator %=: division by zero&quot;</span>;</div><div class="line"><a name="l00206"></a><span class="lineno">  206</span>&#160;    <a class="code" href="class_big_integer.html">BigInteger</a> q;</div><div class="line"><a name="l00207"></a><span class="lineno">  207</span>&#160;    <span class="comment">// Mods *this by x.  Don&#39;t care about quotient left in q.</span></div><div class="line"><a name="l00208"></a><span class="lineno">  208</span>&#160;    divideWithRemainder(x, q);</div><div class="line"><a name="l00209"></a><span class="lineno">  209</span>&#160;}</div><div class="line"><a name="l00210"></a><span class="lineno">  210</span>&#160;<span class="comment">// This one is trivial</span></div><div class="line"><a name="l00211"></a><span class="lineno">  211</span>&#160;<span class="keyword">inline</span> <span class="keywordtype">void</span> BigInteger::flipSign() {</div><div class="line"><a name="l00212"></a><span class="lineno">  212</span>&#160;    sign = Sign(-sign);</div><div class="line"><a name="l00213"></a><span class="lineno">  213</span>&#160;}</div><div class="line"><a name="l00214"></a><span class="lineno">  214</span>&#160;</div><div class="line"><a name="l00215"></a><span class="lineno">  215</span>&#160;<span class="preprocessor">#endif</span></div><div class="ttc" id="class_big_unsigned_html"><div class="ttname"><a href="class_big_unsigned.html">BigUnsigned</a></div><div class="ttdef"><b>Definition:</b> BigUnsigned.hh:13</div></div>
<div class="ttc" id="class_big_integer_html"><div class="ttname"><a href="class_big_integer.html">BigInteger</a></div><div class="ttdef"><b>Definition:</b> BigInteger.hh:13</div></div>
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